Radio Detection of the Supernova Remnant RX J0852.0-4622

Details Radio Detection of the Supernova Remnant RX J0852.0-4622 Radio Detection of the Supernova Remnant RX J0852.0-4622

Jul 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...519l.177c&link_type=abstract

The Astrophysical Journal, Volume 519, Issue 2, pp. L177-L180.

Astronomy and Astrophysics

Astronomy

27

Ism: Cosmic Rays, Radiation Mechanisms: Nonthermal, Radio Continuum: General, Ism: Supernova Remnants

Scientific paper

The X-ray source RX J0852.0-4622 has been recently proposed as a candidate for a young nearby supernova remnant on the basis of its X-ray (>=1.3 keV) morphology, inferred internal shock velocities, and the clear detection of ^44Ti emission lines. In this Letter, we report its detection at radio wavelengths (2.4 and 1.42 GHz). The radio images match the X-ray morphology very well and show a limb-brightened source with some elongated features protruding from the outer shell. These features could be explosion fragments similar to those detected in the Vela supernova remnant. At radio frequencies the source appears to be nonthermal, with an index ~-0.3. This synchrotron emission seems to extend up to X-ray energies, implying the existence of very high energy electrons locally accelerated in the remnant.

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